Cooling device for slug casting machines



April 1941. R. M. MILLER 2,237,610

COOLING DEVICE FOR SLUG CASTING MACHINES Filed July 5, 1940 2 Sheets-Sheet 1 IN V EN TOR.

A TTORNEYS.

April 8, 1941. R. MMILLER coomue DEVICE FOR SLUG CASTING MACHINES Filed July 5, 1940 2 Sheets-Sheet 2 IN V EN TOR.

. ATTORNEYS.

Patented Apr. 8, 1941 UNITED STAT E S PAT E T FMQE.

CUOLIN G DEVICE FOR SLUG CASTING MACHINES 3 Claims.

This invention relates to slug casting machines, and more particularly to that type of slug casting machine usually referred to commercially as Linotype machines.

The primary object of the invention is to provide a cooling attachment which may be readily and easily mounted on a slug casting machine, and constructed to maintain the mold cap cool and insuring a good quality slug, when the machine is operating at a high rate of speed.

Another object of the invention is to provide a cooling device of this character having means whereby foreign matter may be readily blown therefrom by merely operating a valve to control the passage of compressed air directly through the device.

With the foregoing and other objects in view, which. will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein described, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is an elevational View illustrating the attachment as positioned on a slug casting machine.

Figure 2 is a side elevational view thereof.

Figure 3 is an enlarged detail view illustrating the support for the tube through which the air pressure is directed to the mold cap.

Figure 4 is an enlarged elevational view of the portion of the tube that provides the nozzle for the attachment.

Figure 5 is a sectional view taken on line 5-5 of Figure l.

Figure 6 is a fragmental sectional view through the nozzle portion of the tube, illustrating the recess or depression formed in the nozzle portion of the tube.

Figure '7 is a sectional View taken on'line 'l-'I of Figure 3.

Referring to the drawings in detail, the reference character designates the usual mold carrying disk or mold cap which is mounted on the frame 6 of the usual slug casting machine.

The mold cap cooling device forming the sub- ,iect matter of the present invention, is secured to the frame, and comprises a main supporting block 1.

A bolt indicated at 8 extends through an opening formed in the block 1, and bolts the supsupporting block I and accommodates the pipe porting block in position on the frame. Bores 9 and IE! are formed in the supporting block I, the bore 9 being closed at one end, by the plug ll, while the opposite end of the bore receives one end of the pipe [2, through which air under pressure passes to the mold carrying disk or mold cap 5.

An opening is formed in one side of the main H which extends into the head M that is secured on the upper end of the compressed air tank ii. The head M is constructed to provide a valve seat for the valve H5, which can be operated to control the passage of air under pressurethrough the head Hi, as clearly shown by Figure 3. A gauge indicated at H is in communication with the head l Lto register the air pressure passing through the head.

The supply hose l3 extends into the upper end of the tank 15, the passage of compressed air through the hose being controlled by means of the valve 19.

As clearly shown by Figure 1 of the drawings, the pipe l2 extends vertically, and has a curved portion 20, from where the pipe extends downwardly, the lower end of the pipe entering the bore ID of the block 1. A valve indicated at 2| is positioned in the lower end of the bore Hi, to control the passage of air under pressure, directly through the block, for purposes to be hereinafter more fully described.

The portion of the pipe It, adjacent to the curved portion 20, is provided with discharge openings 22 through which air under pressure passes from the pipe. It will of course beunderstood that the pipe is so arranged with respect to the mold carrying disk or mold cap 5, that jets of air are directed onto the mold carrying disk or mold cap 5, maintaining the mold carrying disk cool.

The portion of the pipe surrounding the uppermost opening 22, is depressed as at 23 as shown by Figure 6, so that air issuing from the uppermost opening 22, will be directed downwardly at an angle towards the main or center portion of the mold carrying disk 5, to prevent undue cooling of the slug casting machine mouthpiece not shown. Bracket 26 which provides the support for the water filter tank I5, is clamped in position between the block 1 and frame of the machine. The bracket 24 and block are further held against movement, by means of the pin 25, formed on the usual slug casting machine, the pin extending into the opening 26 formed in the inner surface of the block 1. Due to this construction, it will be seen that the discharge openings 22 will be so disposed that they will direct jets of air against the mold carrying disk, at all times, to accomplish the purpose of the invention.

In the use of the device, the valve I9 is operated to direct air under pressure to the tank l5, from where it passes through the head l4 and into the bore 9 of the main supporting block I. The air now passes through the pipe [2 and is discharged in fine jets, through openings 22 formed in the straight portion of the pipe, directly at the rear of the mold carrying disk 5, maintaining the mold carrying disk 5 cool, when the machine is operating at a rapid rate of speed.

Should the openings 22 become clogged, due to foreign matter passing into the pipe, the foreign matter may be punched from the openings,

and the valve 2| moved to its open position. Air. pressure directed through the pipe l2 will now pass through the main supporting block I, and discharge through the valve 2|, carrying all foreign matter which may be forced into the pipe from the openings 22, from the machine, to the end that the machine may be kept in operation without the necessity of dismantling the machine in order to clean the attachment.

From the foregoing it will be seen that due to the construction shown and described, I have provided an attachment for the usual slug casting machine, which may be installed on any type of slug casting machine now in use, the attachment being such that it may be readily removed and placed on other machines, without the necessity of making extensive alterations in the construction of the machine to be equipped with the cooling attachment.

What is claimed is:

1. The combination with a slug casting ma chine and the mold carrying disk thereof, of a mold carrying disk cooling device, comprising a supporting block having bores, a pipe formed into a loop, the ends of the pipe being disposed within the bores of the supporting block, said pipe having a plurality of discharge openings disposed adjacent to the mold carrying disk, said openings adapted to direct jets of air against the mold carrying disk, a valve for controlling the passage of air under pressure to the pipe, and a valve adapted to control the exhaust of air through one end of the pipe.

2. The combination with a slug casting machine and the mold carrying disk thereof, of a mold cooling device comprising a pipe bent upon itself to provide a loop, a main supporting block having openings in which the ends of said pipe are positioned, means for bolting the block to the frame of a slug casting machine, said pipe having a plurality of discharge openings formed therein and directed against the mold carrying disk of the machine with which the device is used, a valve for controlling the passage of air under pressure to said pipe, and a Valve at the opposite end of the pipe for controlling the passage of compressed air directly through the pipe.

3. The combination with a slug casting machine and the mold carrying disk thereof, of a mold cooling device comprising a main supporting block having a recess in one surface thereof, said block having bores, a pipe having its ends extended into the bores and open, communicating with the bores, a valve for controlling air under pressure to the pipe, a valve at the opposite end of the pipe for controlling the passage of air under pressure from the pipe, said pipe having a plurality of openings through which air passes to the mold carrying disk in fine jets, cooling the disk, said block having a bolt opening, a bolt extending through the block connecting the block to the frame of the machine, and said recess of the block adapted to fit over a lug of the machine, securing the block against lateral move- 'ment with respect to the machine.

RUSSELL M. MILLER. 

